Sandvik Coromant 5723997 Turning Insert CCMT21.51-UM 1125

Product Description

The SANDVIK COROMANT 5723997 is a CCMT-style solid carbide turning insert in the CoroTurn 107 series, designed for external turning operations on CNC lathes and turning centers. The insert carries a TiAlN and AlCr2O3 PVD coating in grade 1125, engineered for steel and stainless steel workpiece materials. Key geometry specs include an 80-degree diamond shape, a 1/4-inch inscribed circle, a 1/64-inch corner radius, and a neutral hand orientation. The UM chip breaker geometry supports medium-duty finishing and semi-finishing passes. Licensed machinists and CNC turning specialists install this insert as a direct production or replacement cutting tool.

This insert is suited for turning steel and stainless steel in both light roughing and finishing applications. The CCMT 06 02 04-UM 1125 ISO designation confirms its fit within standard CCMT toolholder pockets. The CoroTurn 107 series is widely used in external turning on light-to-medium material removal applications where close tolerances and surface finish quality are priorities. The UM chip breaker provides reliable chip control across a range of feed rates and cutting depths common in precision part production environments.

Key Features

• Grade 1125 PVD-coated carbide with TiAlN and AlCr2O3 coating for wear resistance on steel and stainless steel
• 80-degree diamond insert shape (shape code C) for versatile approach angles in external turning
• UM chip breaker geometry optimized for medium finishing and semi-finishing operations
• Neutral hand orientation compatible with standard CCMT screw-lock toolholders
• 1/64-inch corner radius (0.0156 inches) supports close-tolerance finishing cuts
• Two cutting edges per insert for extended tool life per unit

Compatibility

Designed for use in CCMT-style screw-lock toolholders accepting a 1/4-inch inscribed circle insert. ISO designation CCMT 06 02 04-UM 1125 confirms fitment in standard CCMT 06 02 pocket geometry. Primary workpiece material is steel (ISO code P); secondary workpiece material is stainless steel (ISO code M).

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or replacing inserts. Secure the insert using the appropriate torx or hex key to the screw-lock clamp; do not over-torque the clamping screw. Inspect the toolholder pocket for wear or debris before seating a new insert to ensure proper seating and cutting edge alignment.